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A few normal seedlings of tomato were kept in a dark room. After a few days they were found to have become white-coloured like albinos. Which of the following terms will you use to describe them?

1. Mutated
2. Embolised
3. Etiolated
4. Defoliated

Correct answer: Etiolated

Solution

Seedlings kept in darkness cannot make enough chlorophyll, so they become pale/white and elongated; this condition is called etiolation. It is a response to lack of light, not a mutation or leaf loss.

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